CN104054194A - Battery cell - Google Patents

Battery cell Download PDF

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Publication number
CN104054194A
CN104054194A CN201380005816.7A CN201380005816A CN104054194A CN 104054194 A CN104054194 A CN 104054194A CN 201380005816 A CN201380005816 A CN 201380005816A CN 104054194 A CN104054194 A CN 104054194A
Authority
CN
China
Prior art keywords
battery unit
positive terminal
anode connector
housing
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201380005816.7A
Other languages
Chinese (zh)
Inventor
孔明哲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SK Innovation Co Ltd
Original Assignee
SK Innovation Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SK Innovation Co Ltd filed Critical SK Innovation Co Ltd
Publication of CN104054194A publication Critical patent/CN104054194A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0459—Cells or batteries with folded separator between plate-like electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/24—Alkaline accumulators
    • H01M10/30—Nickel accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/178—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/564—Terminals characterised by their manufacturing process
    • H01M50/566—Terminals characterised by their manufacturing process by welding, soldering or brazing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

The present invention relates to a battery cell capable of preventing a degradation in the durability thereof due to heat, and of increasing charging and discharging efficiency.

Description

Battery unit
Technical field
The present invention relates to a kind of battery unit, particularly, relate to a kind of can preventing and reduce because thermalization causes durability, improve the battery unit of charging and discharging efficiency.
Background technology
Conventionally, secondary cell is different from primary cell, can carry out charging and discharging, is therefore applicable to the various fields such as digital camera, mobile phone, notebook computer, hybrid vehicle, and the research that it is enlivened.As secondary cell, can enumerate nickel-cadmium cell, nickel metal hydride battery, Ni-MH battery, lithium secondary battery etc.
In these secondary cells, to thering is the lithium secondary battery of high-energy-density and discharge voltage, carried out large quantity research, and popularized and be widely used.
Lithium secondary battery can manufacture various shape, but can exemplify as representative shape cylinder type (cylinder type) and the prismatic (prismatic type) that is mainly used in lithium ion battery, the poly-lithium battery attracting attention recently manufactures the bag type (pouched type) with flexibility, so its shape matching is flexible.
With the anode connector of negative plate and positive plate and positive terminal, to outside, outstanding mode forms such secondary cell, by described anode connector and positive terminal, implements charging and discharging.But along with charging and discharging repeatedly, battery unit internal temperature rises, and the thermalization of battery unit occurs, so the lost of life, or because bag is inner, produce the swelling of heaving that gas causes etc. and there is blast and danger on fire.
On the other hand, in the situation that enclosure interior is provided with a plurality of negative plates and positive plate, lamination type is manufactured secondary cell internal element.Wherein, the secondary cell internal element heap forming with Z-curling (being called Z-folding, zigzag folding or accordion folding) mode lamination shape, open in a plurality of patent documentations.
Now, barrier film 3 forms folding in a zigzag shape, negative plate 1 and positive plate 2 carry out lamination with the shape of alternately inserting wherein, but the battery unit of this shape can make the reduction problem of the durability causing because of thermalization of above-mentioned explanation more serious, therefore need to a kind ofly can prevent thermalization, further improve the battery unit of charging and discharging efficiency.
Summary of the invention
(1) technical problem that will solve
The present invention proposes in order to solve problem as above, the object of the present invention is to provide a kind of can preventing to reduce because thermalization causes durability, improves the battery unit of charging and discharging efficiency.
(2) technical scheme
In order to reach object as above, battery unit of the present invention, is characterized in that, comprising: battery portion, and it comprises positive plate, negative plate and barrier film; Positive terminal, it extends from described positive plate; Anode connector, it extends from described negative plate; Housing, described positive terminal and anode connector are outstanding laterally, and its inside comprises described battery portion and seals, wherein, in described positive terminal and anode connector one or all form more than two.
And, being characterized as of described battery unit, described positive terminal and anode connector are outstanding to be formed on the plural side of selecting in the direction up and down of described housing.
And being characterized as of described battery unit, forms two on the side that described positive terminal and anode connector are selected in the direction up and down of described housing side by side.
Meanwhile, being characterized as of described battery unit, charging and discharging is implemented by different described positive terminal and anode connector.
And, being characterized as of described battery unit, described barrier film is folding in a zigzag shape, described positive plate and negative plate alternately insert lamination.
(3) beneficial effect
Thus, battery unit of the present invention has and can prevent from reducing because thermalization causes durability, improves the advantage of charging and discharging efficiency.
Accompanying drawing explanation
Fig. 1 and Fig. 2 mean stereogram and the exploded perspective view of the battery unit of the embodiment of the present invention.
Fig. 3 means another front view of the battery unit of the embodiment of the present invention.
Fig. 4 and Fig. 5 mean other stereograms and the exploded perspective view of the battery unit of the embodiment of the present invention.
Fig. 6 means other exploded perspective views of the battery unit of the embodiment of the present invention.
Fig. 7 and Fig. 8 mean stereogram and the cutaway view of battery portion of the battery unit of the embodiment of the present invention.
Description of reference numerals
1000: battery unit 110: housing
120: battery portion 121: positive plate
122: negative plate 123: dividing plate
130: positive terminal (in the situation that forming two, 131: the first positive terminals, 132: the second positive terminals)
140: anode connector (in the situation that forming two, 141: the first anode connectors, 142: the second anode connectors)
Embodiment
Below, with reference to accompanying drawing, to thering is the battery unit of the present invention 1000 of feature as above, be elaborated.
Being characterized as of battery unit 1000 of the present invention, it comprises battery portion 120, positive terminal 130, anode connector 140 and housing 110, in positive terminal 130 and anode connector 140 one or all form more than two.
Battery portion 120 comprises positive plate 121, negative plate 122 and barrier film, and it is arranged on housing 110 inside.
Between positive plate 121 and negative plate 122, be provided with barrier film, and positive plate 121, barrier film, negative plate 122 and electrolyte solution are together arranged on housing 110 inside.
Positive terminal 130 and anode connector 140 are the charging and dischargings for battery portion 120, and from positive plate 121 and negative plate 122, extend the structure forming respectively, outstanding formation to housing 110 outsides.
Now, positive terminal 130 and anode connector 140 can weld and be formed on positive plate 121 and negative plate 122.
Housing 110, as the base main body that forms battery unit 1000, seals with bag shape.
Now, housing 110 can utilize the parts of film shape, maybe can utilize the parts that are formed with the space that battery portion 120 can be set.
In battery unit 1000 of the present invention, in positive terminal 130 and anode connector 140 one or all can form more than two.
; battery unit 1000 of the present invention can have two positive terminal 130 and the negative plates 122 that are formed at above in positive plate 121 and negative plate 122 one, and can form two above positive terminal 130 and negative plates 122 that all form on positive plate 121 and negative plate 122.
Now, form plural positive terminal 130 or anode connector 140 and can implement charging and discharging by various combination.
Positive terminal 130 and anode connector 140 can protrude from the direction up and down that is selected from housing 110 on selected plural side, can in the direction up and down of described housing 110, on selected side, form side by side two.
Thus, in battery unit 1000 of the present invention, be formed at the positive terminal 130 on positive plate 121 and be formed in the anode connector 140 on negative plate 122 or all form more than two, therefore can separation of charged and discharge connector, have and can prevent from declining because thermalization causes durability, improve the advantage of charging and discharging efficiency.
Below, illustrated the first embodiment to the four embodiment of take are benchmark, and the various formation examples of positive terminal 130 and anode connector 140 are described.
The 1st embodiment
The battery unit 1000 of the 1st embodiment of the present invention shown in Fig. 1 and Fig. 2 illustrates housing 110 for take downside as the folding shape of sealing mutually of benchmark, positive terminal 130 is included in housing 110 upper sides spaced the first positive terminal 131 and the second positive terminal 132 and form at a certain distance, and the right flank of housing 110 is provided with the example of single anode connector 140.
The 2nd embodiment
It is identical with the shape shown in Fig. 1 and Fig. 2 that the battery unit 1000 of the 2nd embodiment of the present invention shown in Fig. 3 illustrates, but anode connector 140 comprises respectively first anode connector 141 and the second anode connector 142 and the example that forms at left side and right flank.
Now, can implement charging with the first positive terminal 131 and the second anode connector 142, the mode that the second positive terminal 132 and the first anode connector 141 are implemented discharging function forms, and certainly, also can form in contrary mode.
The 3rd embodiment
The battery unit 1000 of the 3rd embodiment of the present invention shown in Fig. 4 and Fig. 5 illustrates housing 110 for take left surface as the folding shape of sealing mutually of benchmark, positive terminal 130 is included in housing 110 upper sides spaced the first positive terminal 131 and the second positive terminal 132 and form at a certain distance, and anode connector 140 is included in housing 110 downsides spaced the first anode connector 141 and the second anode connector 142 and the example that forms at a certain distance.
The 4th embodiment
The battery unit 1000 of the 4th embodiment of the present invention shown in Fig. 6 illustrates housing 110 and is separately formed by two structures, positive terminal 130 comprises and is arranged on the first positive terminal 131 of housing 110 upsides and side one side and the second positive terminal 132 and forms, and anode connector 140 comprises and is arranged on housing 110 below and the second anode connector 142 of side opposite side and the second anode connector 142 and the example that forms.
Simultaneously, though battery unit 1000 of the present invention is not shown in figure, it can be that positive plate 121 upsides and downside are formed with the first positive terminal 131 and the second positive terminal 132, and negative plate 122 two sides are formed with the shape of the first anode connector 141 and the second anode connector 141.
The 5th embodiment
The battery unit 1000 of the 5th embodiment of the present invention shown in Fig. 7 and Fig. 8 illustrates barrier film for folding in a zigzag shape, positive plate 121 and negative plate 122 alternately insert the example of lamination, in Fig. 7, having represented that positive terminal 130 comprises to the first outstanding positive terminal 131 of figure front side and rear direction and the second positive terminal 132 forms, and anode connector 140 comprises the example forming to figure front side and outstanding the first anode connector 141 of rear direction and the second anode connector 142.
But in battery unit of the present invention, below the 1st embodiment to the 4 embodiment be an embodiment, it is contrary with the positive terminal and the anode connector that form in above-mentioned the 1st embodiment to the 4 embodiment that the positive terminal of battery unit of the present invention and anode connector can form, numerous variations, except the example of explanation, can also be carried out in the quantity of positive terminal and anode connector and formation position.
The present invention is not limited to above-described embodiment, and its scope of application is various, and in the scope of purport that does not depart from claim the present invention for required protection, so long as have the people of the technical field of the invention general knowledge, all can carry out various changes.

Claims (5)

1. a battery unit, is characterized in that, comprising:
Battery portion, it comprises positive plate, negative plate and barrier film;
Positive terminal, it extends from described positive plate;
Anode connector, it extends from described negative plate;
Housing, described positive terminal and anode connector are outstanding laterally, and its inside comprises described battery portion and seals;
Wherein, in described positive terminal and anode connector or all form more than two.
2. battery unit according to claim 1, is characterized in that, the described positive terminal of described battery unit and anode connector are outstanding to be formed on the plural side of selecting in the direction up and down of described housing.
3. battery unit according to claim 2, is characterized in that, on the side that the described positive terminal of described battery unit and anode connector are selected in the direction up and down of described housing, forms side by side two.
4. according to the battery unit described in claim 2 or 3, it is characterized in that, the charging and discharging of described battery unit is implemented by different described positive terminal and anode connector.
5. battery unit according to claim 4, is characterized in that, the described barrier film of described battery unit is in a zigzag folding shape, and described positive plate and negative plate alternately insert lamination.
CN201380005816.7A 2012-02-07 2013-01-09 Battery cell Pending CN104054194A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020120012228A KR20130091031A (en) 2012-02-07 2012-02-07 Battery cell
KR10-2012-0012228 2012-02-07
PCT/KR2013/000149 WO2013118972A1 (en) 2012-02-07 2013-01-09 Battery cell

Publications (1)

Publication Number Publication Date
CN104054194A true CN104054194A (en) 2014-09-17

Family

ID=48947707

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201380005816.7A Pending CN104054194A (en) 2012-02-07 2013-01-09 Battery cell

Country Status (5)

Country Link
US (1) US20140356698A1 (en)
JP (1) JP2015512119A (en)
KR (1) KR20130091031A (en)
CN (1) CN104054194A (en)
WO (1) WO2013118972A1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN112204812A (en) * 2018-06-14 2021-01-08 国立大学法人东北大学 Electric storage element, storage battery, and electric storage/discharge system

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CN115275365A (en) * 2019-09-25 2022-11-01 荣耀终端有限公司 Battery module, charging module and electronic equipment supporting high-power quick charging

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Also Published As

Publication number Publication date
US20140356698A1 (en) 2014-12-04
WO2013118972A1 (en) 2013-08-15
KR20130091031A (en) 2013-08-16
JP2015512119A (en) 2015-04-23

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Application publication date: 20140917